Attach window to window of another process

Question

My WPF application has more than one window, I want to attach some of these windows to a window of another process. My problem is that once I attach my window it becomes inv

Answer 1

private void TryToAttach(IntPtr ownerHandle)
{
    if(ownerHandle == IntPtr.Zero)
    {
        return;
    }
    try
    {
        var helper = new WindowInteropHelper(window) { Owner = ownerHandle };
    }
    catch(Exception e)
    {
        Logger.Error(e, "Could not attach window.");
    }
}